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Best Serial Module Board

Waveshare Compute Module IO Board Plus Development Composite Breakout Board for Developing with Raspberry Pi CM3 CM3L Various Common Use Components

  • The Compute Module IO Board Plus is a development board which you can plug a Raspberry Pi Compute Module into, and make use of the resources of Pi more flexibly. It is compatible with the Compute Module IO Board V3 from the Raspberry Pi Foundation, along with various common use components..
  • Compatible with the Compute Module IO Board V3 from the Raspberry Pi Foundation Raspberry Pi GPIO header, for connecting sorts of Raspberry Pi HATs.
  • connectivity, also supports shields 1-WIRE interface, for connecting single-bus devices like DS18B20 4x keys, 4x LEDs, 1x Buzzer, for I/O testing.
  • Onboard USB HUB, allows connecting more USB devices IR receiver, IR remote control is available Onboard USB TO UART, for serial debugging Sensor interface.
  • 10-bit ADC, 38KSPS, 11-ch (6-ch for interface, 5-ch for sensors) 16-bit DAC, 2-ch Onboard RTC, one of the most common and useful functions.
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WayinTop 20x4 2004 LCD Display Module with IIC/I2C/TWI Serial Interface Adapter (Yellow Green/2004)

  • 【20x4 LCD Display】With this shield, you can display whatever you want by programming the for Arduino board. Therefore, this is a perfect choice to make your project more interesting and vivid! Totally display 20 characters in one row, 4 rows can display 80 characters..
  • 【IIC Interface Adapter】No need to buy the adapter extra, this kit contains a IIC/I2C/TWI Serial Interface Adapter, with witch you can start your project at any time..
  • 【Easy to Use】 Less I/O ports are occupied, only four - VCC, GND, SDA (serial data line), SCL (serial clock line). Address of the module: 0x27.
  • 【Support IIC Interface】It only takes two I/O port thus saving more for other usages. You can adjust the contrast by the potentiometer at its back. If you don’t want the back light, you can also unplug the jumper cap at the LCD back..
  • 【Widely Applications】LCD display module based on the popular controller, works great with for Arduino and other micro-controllers..
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5PCS HC-05 Wireless Bluetooth Receiver RF Serial Transceiver Module Master Slave Integrated Bluetooth Module 6 Pin Wireless Serial Port Communication BT Module

  • HC-05 Bluetooth Module is an easy to use Bluetooth SPP (Serial Port Protocol) module, designed for transparent wireless serial connection setup..
  • Default baud rate:9600, Button: Press the button.
  • the module enter the AT mode. AT commands are executed only in AT mode..
  • HC-05 is able to operate in both master and slave mode. Its communication is via serial communication which makes an easy way to interface with controller or PC. It's ideal replacement to your wired serial connection..
  • HC-05 Wireless BT Module: with this HC 05 Bluetooth module,You can quickly add the Bluetooth feature to your motherboard project, and then you can use your android phone to control some gadgets, such as: switch, LED..
  • Note: The module doesn’t suitable for IOS system..
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ARCELI ESP-12E ESP8266 UART WiFi Wireless Shield Compatible with Arduino UNO R3

  • Standard pin interface to achieve full compatibility with the pitch Arduino Uno, Mega and so on. (Unless the standard size arduino, such as Nano, Mini).
  • 3.3V power supply using advanced chip (with the official expansion board power chip CC3000 same), so 3.3V Arduino board provided more accurate, so ESP8266 as official cc3000 chip work as normal, there is no gap..
  • It leads to a WiFi module power supply / service interface to facilitate developers to extend the power supply and maintenance..
  • Onboard ESP8266-12 stable industrial grade serial WiFi module, using an enhanced PCB antenna, signal better..
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RedTagCanada SIM900 Quad Band GSM GPRS Quad-Band Modules 2G Shield Development Board for R3 Mega with Antenna for Arduino SCM & DIY Kits

  • Embedded TCP / UDP stack - allows you to upload data to a Web server | RTC supported | selectable serial port | Jac speakers and headphones.
  • Quad-Band 850/900/1800/1900 MHz - could work on GSM networks in all countries around the world, work with Uno Mega..
  • This is a new version (64M version), SMS support MMS: Multimedia message and Short Message Service - so it is possible to send small amounts of data over the network (ASCII or raw hexadecimal).
  • The shield allows you to get SMS, MMS, GPRS and audio via UART by sending AT commands (GSM 07.07, 07.05 and SIMCOM enhanced to commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module (They are all 2V8 logic) present on board..
  • Application: M2M (Machine 2 Machine) Applications.Remote control of appliances.Remote Weather Station or Wireless Sensor Network.Vehicle tracking system with a GPS module.Good to learn GSM / GPRS mobile phone development, control development of remote equipment, wireless meter reading, smart appliances, ultra long distance control, etc..
  • Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced.
  • Power jack - connected to external 4.8~5VDC power supply, Antenna interface - connected to external antenna, Serial port select - select either software s....
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DORHEA 5PCS ESP32 Development Board Type-C USB WiFi + Bluetooth ESP-WROOM-32 2.4GHz Dual Core WiFi NodeMCU Processor ESP32-DevKitC-32

  • Dual core ESP-32 development board, 2.4GHz dual mode development board. There are two touch buttons, one is reset, the other is enable module to enter the halberd program mode..
  • The module is ESP-WROOM-32 module, the peripheral uses the USB serial port to expand the type c interface, which can be directly debugged by a USB connected computer, and the data transmission is fast and stable..
  • The module supports for NodeMCU and other development environments, which expands the range of its resources available and greatly improves the ease of learning and development. Of course, it can also be widely used in Internet of things occasions, such as home automation, wireless industrial control, wireless positioning system signal.
  • ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA..
  • ESP32 is a safe, reliable, and scalable to a variety of applications,the user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values exceed the threshold..
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4PCS ESP32 ESP-32S WiFi Development Board NodeMCU ESP-WROOM-32 Microcontroller 2.4GHz Dual-Core WiFi Bluetooth Processor Integrated Chip CP2102

  • Dual core ESP-32 development board, 2.4GHz dual mode development board.There are two touch buttons, one is reset, the other is enable module to enter the halberd program mode..
  • The module is ESP-WROOM-32 module, the peripheral uses the USB serial port chip CP2102 to expand the micro USB interface, which can be directly debugged by a USB connected computer, and the data transmission is fast and stable..
  • ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA..
  • The module supports for NodeMCU and other development environments, which expands the range of its resources available and greatly improves the ease of learning and development. Of course, it can also be widely used in Internet of things occasions, such as home automation, wireless industrial control, wireless positioning system signal.
  • ESP32 is a safe, reliable, and scalable to a variety of applications,the user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values ​​exceed the threshold..
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3PCS ESP32 ESP-32S WiFi Development Board NodeMCU ESP-WROOM-32 Microcontroller 2.4GHz Dual-Core WiFi Bluetooth Processor Integrated Chip CP2102

  • Dual core ESP-32 development board, 2.4GHz dual mode development board.There are two touch buttons, one is reset, the other is enable module to enter the halberd program mode..
  • The module is ESP-WROOM-32 module, the peripheral uses the USB serial port chip CP2102 to expand the micro USB interface, which can be directly debugged by a USB connected computer, and the data transmission is fast and stable..
  • ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA..
  • The module supports for NodeMCU and other development environments, which expands the range of its resources available and greatly improves the ease of learning and development. Of course, it can also be widely used in Internet of things occasions, such as home automation, wireless industrial control, wireless positioning system signal.
  • ESP32 is a safe, reliable, and scalable to a variety of applications,the user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values ​​exceed the threshold..
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DORHEA 6PCS ESP32 ESP-32S WiFi Development Board NodeMCU ESP-WROOM-32 Microcontroller 2.4GHz Dual-Core WiFi Bluetooth Processor Integrated Chip CP2102

  • Dual core ESP-32 development board, 2.4GHz dual mode development board.There are two touch buttons, one is reset, the other is enable module to enter the halberd program mode..
  • The module is ESP-WROOM-32 module, the peripheral uses the USB serial port chip CP2102 to expand the micro USB interface, which can be directly debugged by a USB connected computer, and the data transmission is fast and stable..
  • ESP32 development board support lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA..
  • The module supports for NodeMCU and other development environments, which expands the range of its resources available and greatly improves the ease of learning and development. Of course, it can also be widely used in Internet of things occasions, such as home automation, wireless industrial control, wireless positioning system signal.
  • ESP32 is a safe, reliable, and scalable to a variety of applications,the user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values ​​exceed the threshold..
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ACEIRMC 3pcs IIC I2C TWI Serial LCD 2004 20x4 Display Screen Blue + IIC I2C Module Interface Adapter for Raspberry Pi Arduino (Blue)

  • The LCD has always been a device that acts as a window in human-computer interaction. For example, the prompt window on some instrument devices, the temperature and humidity prompt box, the device running status monitor, and the prompt screen of the counting device all have LCD figures.
  • LCD2004+I2C 2004 20x4 2004A Blue/Green screen HD44780 Character LCD /w IIC/I2C Serial Interface Adapter Module for arduino.
  • It is a high-performance serial bus with bus rules and high-speed or low-speed device synchronization required for multi-master systems. The I2C bus has only two bidirectional signal lines, a serial data line (SDA) and a serial clock line (SCL)..
  • Compatible with all devices with I2C interfaces, such as for Arduino, raspberry pi, beagle bone black, tinker board, stm32, esp32 and more..
  • please check which chip you have on i2c interface. (Before you upload the code to the control board, please download the LiquidCrystal_I2C library).
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HiLetgo Smallest SIM800L GPRS GSM Breakout Module Quad-Band 850/900/1800/1900MHz SIM Card Slot Onboard with Antenna 3.7~4.2V

  • Mini GSM / GPRS breakout board is based on SIM800L module, supports quad-band GSM/GPRS network, available for GPRS and SMS message data remote transmission..
  • The board features compact size and low current consumption. With power saving technique, the current consumption is as low as 1mA in sleep mode..
  • It communicates with microcontroller via UART port, supports command including 3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands..
  • AT command interface with "auto baud" detection..
  • TTL serial port for serial port, you can link directly to the microcontroller.
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2Pcs HC-06 RS232 4 Pin Wireless Bluetooth Serial Transceiver Module Bi-Directional Serial Support Slave and Master Mode

  • Industrial serial port bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port....
  • Operating voltage: 3.3V(Note:SPP-CA Bluetooth module serial port level to 3.3V, if connect 5V level,the system needs to increase the level conversion....
  • Small size, low power consumption,high sensitivity for send and receive.
  • Allows your device to both send or receive the TTL data via Bluetooth....
  • Defaults: Salve, baud rate 9600, Bluetooth name HC-06, pairing password 1234, LED status light on.Core module uses HC-06, leads from the module....
  • Applications: The Bluetooth module is mainly used for short-range data wireless transmission,such as Bluetooth wireless data transmission,Industrial....
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Taidacent SIM800L GPRS GSM Module Micro SIM Card Core Board GSM Quad Band TTL Serial Port ESP32 ESP8266 SIM800L

  • SIM800L GPRS GSM module micro SIM core board quad-band TTL serial port is ESP8266 ESP32.
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